The half-life of a protein is directly related to
A) what kind of cell it is produced in.
B) its tertiary structure.
C) whether it is encoded by a constitutively expressed gene.
D) its N-terminal amino acid residue.
E) the number of stabilizing cross-linkages.
D
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Standardization of antimicrobial susceptibility testing optimizes bacterial growth so inhibition of growth can be attributed to the antimicrobial agents tested and results are accurate, reproducible, and consistent regardless of the microbiology laboratory performing the test. Which of the fol-lowing incubation conditions are used for common (i.e., nonfastidious) bacterial isolates using manual
techniques? a. 16 to 20 hours, ambient temperature, 5% to 7% CO2 b. 16 to 20 hours, 35°C, ambient air c. 20 to 24 hours, ambient temperature, 5% to 7% CO2 d. 20 to 24 hours, 35°C, ambient air
Consider two traits for an organism, determined by two genes, each of which is governed by at least two alleles. In the case of a dihybrid individual, the gametes formed will be of either the parental type or the recombinant type. Recombinant type gametes are formed because of
a. incomplete dominance. b. independent assortment. c. heterozyogosity. d. the principle of dihybrids. e. multiple alleles.
Monohybrid cross
What will be an ideal response?
Class I MHC molecules are essential for
A) presentation of endogenous antigens. B) recognition of chemokines. C) detection of IL-2. D) recognition of class II MHC. E) presentation of exogenous antigens.